that scares me haha it doesnt run rough and it ran fine for 4000 miles and it still runs fine, i broke it in right and from my understanding cams usually fail during break-in if they are gonna fail, im not trying to argue with you im just hoping for the best. wouldnt it run rough if it dropped a lobe? also wouldnt i find metal shavings in my oil filter? i always check for them and i havent seen any, i changed the oil about a week after this noise started im gonna go home and pull the valve cover and see if the springs on that cylinder compress as much as the others if the lobe is gone then they shouldnt compress as far